Re: Starting point hie film

[George L Smyth <GLSmyth@xxxxxxx>]

Elton N. Kaufmann - Cycloid Fathom Group wrote:
> 
> Then George S. wrote:
> >The F11 1/125 sec works out to EI 250, so set your camera accordingly, put
> the filter
> >over your lens, and meter TTF (through the filter).  Bracket one stop
> either way.
> >That's about it.  You'll quickly find out what works and what doesn't for
> what you're
> >trying to accomplish.
> >
> George: good advice, but does not translating f11 & 1/125 to EI 250 assume
> a "light level" and in our IR case, a ratio of IR to visible.  Is this your
> sunny day estimate?

It assumes a bunch of things that should not be assumed. <g>  IMO, it is a good way
to get close to a negative that will fit the photographer's vision - usually.  As
(very probably) none of us have meters that are calibrated to read infrared
radiation, there will be a certain amount of guesswork when it comes to determining
the exposure.  Since HIE/HSI can be used and developed with such a wide range of
choices, it will take one time and experimentation to not only decide how they want
to shoot this film, but also to determine the exposure.  This is why one should do
some bracketing and take notes when starting out.  I suggest a 3 frame bracket, as
opposed to a 5 frame bracket, because I feel that the additional scenes (13 as
opposed to 8) will help with the learning process.  Yes, there will be a few scenes
that will not print exactly the way one has seen, as there is a good bit of
subjectivity in the estimation of the invisible light.

george

- -- 
 Handmade Photographic Images     
  http://www2.ari.net/glsmyth/
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